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EP0321695A3 - Process for production of grain oriented electrical steel sheet having high flux density - Google Patents

Process for production of grain oriented electrical steel sheet having high flux density Download PDF

Info

Publication number
EP0321695A3
EP0321695A3 EP88118993A EP88118993A EP0321695A3 EP 0321695 A3 EP0321695 A3 EP 0321695A3 EP 88118993 A EP88118993 A EP 88118993A EP 88118993 A EP88118993 A EP 88118993A EP 0321695 A3 EP0321695 A3 EP 0321695A3
Authority
EP
European Patent Office
Prior art keywords
production
steel sheet
flux density
electrical steel
oriented electrical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP88118993A
Other versions
EP0321695A2 (en
EP0321695B1 (en
Inventor
Nobuyuki C/O Nippon Steel Corporation Takahashi
Yozo C/O Nippon Steel Corporation Suga
Katsuro C/O Nippon Steel Corporation Kuroki
Satoshi C/O Nippon Steel Corporation Arai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP63109880A external-priority patent/JPH0686630B2/en
Priority claimed from JP63112551A external-priority patent/JPH0686631B2/en
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Publication of EP0321695A2 publication Critical patent/EP0321695A2/en
Publication of EP0321695A3 publication Critical patent/EP0321695A3/en
Application granted granted Critical
Publication of EP0321695B1 publication Critical patent/EP0321695B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
    • C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
    • C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
    • C21D8/1255—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest with diffusion of elements, e.g. decarburising, nitriding

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Electromagnetism (AREA)
  • Manufacturing & Machinery (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Manufacturing Of Steel Electrode Plates (AREA)
  • Soft Magnetic Materials (AREA)
EP88118993A 1987-11-20 1988-11-14 Process for production of grain oriented electrical steel sheet having high flux density Expired - Lifetime EP0321695B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP291975/87 1987-11-20
JP29197587 1987-11-20
JP63109880A JPH0686630B2 (en) 1987-11-20 1988-05-07 Method for manufacturing unidirectional silicon steel sheet with high magnetic flux density
JP109880/88 1988-05-07
JP112551/88 1988-05-11
JP63112551A JPH0686631B2 (en) 1988-05-11 1988-05-11 Method for manufacturing unidirectional electrical steel sheet with high magnetic flux density

Publications (3)

Publication Number Publication Date
EP0321695A2 EP0321695A2 (en) 1989-06-28
EP0321695A3 true EP0321695A3 (en) 1989-10-25
EP0321695B1 EP0321695B1 (en) 1993-07-21

Family

ID=27311578

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88118993A Expired - Lifetime EP0321695B1 (en) 1987-11-20 1988-11-14 Process for production of grain oriented electrical steel sheet having high flux density

Country Status (4)

Country Link
US (1) US4994120A (en)
EP (1) EP0321695B1 (en)
KR (1) KR930001330B1 (en)
DE (1) DE3882502T2 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0378131B1 (en) * 1989-01-07 1997-05-28 Nippon Steel Corporation A method of manufacturing a grain-oriented electrical steel strip
JPH0717960B2 (en) * 1989-03-31 1995-03-01 新日本製鐵株式会社 Method for producing unidirectional electrical steel sheet with excellent magnetic properties
US5082509A (en) * 1989-04-14 1992-01-21 Nippon Steel Corporation Method of producing oriented electrical steel sheet having superior magnetic properties
JPH0730400B2 (en) * 1990-11-01 1995-04-05 川崎製鉄株式会社 Method for producing grain-oriented silicon steel sheet with extremely high magnetic flux density
JPH07122096B2 (en) * 1990-11-07 1995-12-25 新日本製鐵株式会社 Manufacturing method of unidirectional electrical steel sheet with excellent magnetic and film properties
JP2530521B2 (en) * 1991-01-04 1996-09-04 新日本製鐵株式会社 Method for producing grain-oriented electrical steel sheet with low iron loss
JP2620438B2 (en) * 1991-10-28 1997-06-11 新日本製鐵株式会社 Manufacturing method of grain-oriented electrical steel sheet with high magnetic flux density
DE4311151C1 (en) * 1993-04-05 1994-07-28 Thyssen Stahl Ag Grain-orientated electro-steel sheets with good properties
DE19628136C1 (en) * 1996-07-12 1997-04-24 Thyssen Stahl Ag Production of grain-orientated electrical sheets
KR100340500B1 (en) * 1997-09-26 2002-07-18 이구택 A Method for Manufacturing Oriented Electrical Steel Sheets Having Superior Decarburization within Shot Annealing-time
KR100345697B1 (en) * 1997-10-20 2002-09-18 주식회사 포스코 A Method of Manufacturing Hight Permability Oriented Electrical Steel Sheet by Heating its Slab at Low Tempreatures
CN100425392C (en) * 2007-05-14 2008-10-15 北京科技大学 Preparation method for cold rolling sheet of duriron
EP2455497B1 (en) 2009-07-13 2019-01-30 Nippon Steel & Sumitomo Metal Corporation Manufacturing method of grain-oriented electrical steel sheet
JP4709950B2 (en) 2009-07-17 2011-06-29 新日本製鐵株式会社 Method for producing grain-oriented electrical steel sheet
CN102002567B (en) * 2010-12-15 2012-07-11 北京科技大学 A kind of preparation method of oriented high silicon steel sheet
CN108165876B (en) * 2017-12-11 2020-09-01 鞍钢股份有限公司 A method for improving the surface quality of low temperature nitriding oriented silicon steel
PL3744870T3 (en) 2018-01-25 2023-07-31 Nippon Steel Corporation Grain oriented electrical steel sheet
EP3744868B1 (en) * 2018-01-25 2023-04-19 Nippon Steel Corporation Grain-oriented electrical steel sheet
US11952646B2 (en) 2019-01-16 2024-04-09 Nippon Steel Corporation Grain-oriented electrical steel sheet having excellent insulation coating adhesion without forsterite coating
CN110283981B (en) * 2019-07-24 2020-12-11 武汉钢铁有限公司 Production method capable of increasing oxygen content of low-temperature high-magnetic-induction oriented silicon steel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2251960A1 (en) * 1971-10-22 1973-06-20 Nippon Steel Corp METHOD FOR MANUFACTURING GRAIN ORIENTED ELECTRICAL SHEET
EP0219611B1 (en) * 1985-08-15 1990-05-16 Nippon Steel Corporation Method for producing a grain-oriented electrical steel sheet

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5113469B2 (en) * 1972-10-13 1976-04-28
US4171994A (en) * 1975-02-13 1979-10-23 Allegheny Ludlum Industries, Inc. Use of nitrogen-bearing base coatings in the manufacture of high permeability silicon steel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2251960A1 (en) * 1971-10-22 1973-06-20 Nippon Steel Corp METHOD FOR MANUFACTURING GRAIN ORIENTED ELECTRICAL SHEET
EP0219611B1 (en) * 1985-08-15 1990-05-16 Nippon Steel Corporation Method for producing a grain-oriented electrical steel sheet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE TRANSACTIONS ON MAGNETICS, vol. MAG-12, no. 6, November 1976, pages 858-860; T.J. NICHOL et al.: "Effects of N2-H2 final annealing on the magnetic properties of al-bearing high permeability grain oriented Si-Fe" *
PATENT ABSTRACTS OF JAPAN, vol. 9, no. 293 (C-315)[2016], 20th November 1985; & JP-A-60 135 524 (KAWASAKI SEITETSU K.K.) 18-07-1985 *

Also Published As

Publication number Publication date
DE3882502D1 (en) 1993-08-26
EP0321695A2 (en) 1989-06-28
KR930001330B1 (en) 1993-02-26
EP0321695B1 (en) 1993-07-21
KR890008334A (en) 1989-07-10
US4994120A (en) 1991-02-19
DE3882502T2 (en) 1993-11-11

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